ISSN: 0884-6804
Page Count: 5

Composite Interlaminar Fracture: Effect of Matrix Fracture Energy
Hunston, DL
National Bureau of Standards, Polymers Division, Composites Group, MD

Abstract

Numerous recent studies of composite delamination behavior have used the double cantilever beam test to provide a measure of the interlaminar fracture energy of a composite subjected to simple Mode-1 type loading. A major result from these tests has been the observation that increasing the toughness of the matrix resin by a large amount, say twenty-fold, produced a major (approximately fourfold) benefit in this interlaminar fracture energy [1–7]. At present, however, the detailed relationship between resin and composite interlaminar behaviors has not been clearly established because no single study has examined resins with a wide enough range of toughnesses. The purpose of this note is to combine the data from three recent papers [6,8,9] in an effort to make such a comparison for simple Mode-I type loading.

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Paper ID: CTR10842J
DOI: 10.1520/CTR10842J
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